Clipper



March 18 1924 L. J. WAHL GLIPPER Filed July 6. 1920 Patented Mar. 18,1924.

LEO J'. WAHL, OF STERLING, ILLINOIS.

CLIPPER.

Application filed July G, 1920. Serial No. 394,055.

`T 0 all whom t may concern accompanying drawing, forming part of thisspecific-ation. v

My invention relates primarily to clippers intended for use in barbershops,'though it is capable of use for clipping the hair of animals andfor clipping other material than hair.

A clipper constructed in accordance with x my present invention isintended to be operated by an alternating electric current its principleof operation being the provision of anelectromagnet or magnets(3o-operating with an armature bar in such manner that the alternationsof the current will vibrate the armature bar'to operate' the movableclipper blade.

One object of my invention is to so construct and mount the armature barthat its tension against vibration may be varied.

Another object of my invention is to so connect the movable clipperblade to the armature bar that it will be held in proper position withrelation to the stationary clipper blade through the means` of a springItension device, the spring tension device serving also as a drivingconnection. 4

Another object o-f my invention is the provision of means for adjustingthe position of the armature bar to vary the amount of pressure ofthespring tension device between the armature bar and the movable clipperblade.

Other objects of my invention will appear and be described in thespecification.

. The novelty of my invention will be hereinafter more fully set forthand specifically pointed out in the claims.

In the' accompanying drawing Fig. 1 is a plan view of aclipper embodyingmy invention, the cover of the case being removed.

Fig. 2 is a sectional side elevation of thedevi-ce, the rear wall\of thecase being removed.

Fig. 3 is au front end elevation of Fig.,1, the stationary and movableclipper blades being removed.

Fig. 4 is a sectional end view taken on thev dotted line 4 4 of "F ig. 1looking to the right.

The same numerals of reference are used to indicate identical parts inall the figures.

In its preferred form of construction the clipper comprises a case 1within which a pair of electromagnets or solenoids 2 are mounted. Anarmature bar 3 is attached to a blade spring 4, the latter being mountedin the case by means of a bolt 5, the bolt 5 exerting its strength toforce the blade spring 4 against the end of the adjusting screw 6, itbeing noted that the end of the blade spring 4 rests against a shoulder7 of the case 1 so that after the bolt 5 vis tight? ened the bladespring 4 is forced into contact with the adjusting screw 6. The armaturebar 3 is bent approximately at right angles as at 8 and is then slightlytwisted as shown more clearly in Fig. 2, and a spring driving'member 9is attached thereto as by screws 10. rlhe spring driving member 9 iscurved as shown more clearly 1n F ig. 2 and a carrier 11 is attachedthereto, the carrier 11 being pro-vided with driving lugs 12 shown mo-reclearly in Figs. 2' and 3 which engage suitable openings inv the movableclipper blade 13 the latter co-operating with the stationary clipperblade 14 which is secured to the case 1 by screws 15 in the threadedholes 16 of the case 1. The blades 13 and'14 are preferably of the sameor a similar construction as those used inthe ordinary hand operatedhairclipper so that they may be interchangeable with the hand operateddevice. An additional pair of curved blade springs 17 are held in placeon the armature bar by the screws 10 and -assist the spring drivingmember 9 in' holding the clipper blades in proper operating Contact.

The blade spring 4 is. perforated as at 18 at a point adjacent the bolt5 and the reduced end of a .bar 19 enters the perforation, the other endof this bar resting on a pedestal 20 which is a part of the case 1, ascrew 21 being provided and passing through thebottom of the'case 1 andbeing threaded through the bar 19, the screw 21` being located adjacentthe blade vspring 4 the construction being such that when the' screw 21is turned in fthe direction of the".

lead of its thread, the bar 19 will be pulled toward the bottom of the4case 1 and vwill thereby moving the free end of the armature bardownward to close the springs 9 and 17 to press the movable clipperblade 13 against the stationary clipper blade 1'4.

The cover 22 of the case l isbent downwardly as at 23 and a guard 24,preferably made of thin sheet metal and perforated to be embraced by thedriving lugs 12, is fitted between the carrier 11 and the movableclipper blade 13, the guard, 24 being shaped to over- .lap the edge' ofthe portion 23 of the cover 22 to prevent any hair or other foreignsubstance from entering the interior of the case,

this part of the construction being best shown in Fig. 2, the guard 24being omitted from Fig. 1.

rllhe rear of the ease 1 is perforated and a coil spring 25 is passedthrough this perforation to serve as a guard for the cable adjustingscrew 6, whereupon the device is ready for use.

To remove the clipper blades from the device it is only necessary toremove the screws 15 whereupon the lstationary clipper blade may belifted out of position thus eX- posing the underface of the movableclipper blade which may then be lifted from its engagement with thedriving lugs 12 and the blades either resharpened or replaced asoccasion may require.

While I have shown the adjustment for the spring driving member 9 asconsisting of the bar 19 and screw 21, it is apparent that provision maybe made for adjusting the position of the stationary clipper blade 14toward and from the movable clipper lblade 13, or the movable clipperblade 13 might be rigidly mounted with relation to the portion 8 of thearmature bar 3 and the stationary clipper blade be provided with aspring tension device which might be either adjustable or non-adjustablebut which would hold the clipper blades yieldingly in Y operativerelation.

lt -is to be noted that the spring 4 is made suiciently heavy `vsothat`u it :will have strength enough to prevent the armature 3 fromstriking the ends of the pole pieces during the operation of 'thedevice, this spring acting as a movement limit for the travel'of the,armature in the direction towards the pole pieces.

meme@ Having thus fully described my invention li claim: f

1. ln a clipper the combination of a case, a clipper blade carriedthereby, a movable clipper blade eo-operating with the iii-st mentionedblade, an electro-magnetic clipper blade driving mechanism, and ayielding driving connection between the clipper blade driving mechanismand the movable clipper blade for driving the blade and holding it toits seat.

2. lin a clipper the combination of a stationary clipper blade, amovable clipper blade co-operating therewith, an electro-mag netic'blade moving mechanism carried by the carrier for the stationary clipperblade and a yielding driving`connection between the blade movingmechanism and the movable clipper blade.

3. ln a clipper comprising a case carrying a stationary clipper bladeandY a movable clipper blade, the combination of a moving element,electro-magnetic means for moving the latter, a yielding drivingconnection between the moving velement and the movable clipper blade,and means for moving the moving element in a direction other than thatrequired to impart movement to the clipper bladevto subject the yieldingdriving connection to pressure to hold the movable clipper blade inproper operative position to the stationary clipper blade.

4. ln a clipper the combination of a case, a clipper blade carriedthereby, a movable blade co-operating with the irst mentioned blade, anelectromagnet carried by the ease, a circuit for themagnet, a springcarried armature bar, a driving connection between the armature bar andthe movable clipper blade, and means for adjusting the tension gf thespring which carries the armature 5. 1n a clipper the combination of acase, a clipper blade carried thereby, a movable clipper bladeeo-operating with the first mentioned blade, an eleetromagnet carried bythe case, a circuit for the magnet, a spring carried armature barco-operating with the electromagnet, a yielding driving connectionbetween the armature bar and the movable clipper blade, means forsubjecting the yielding driving connection to'tension, and means foradjusting the tension ofthe spring carried armature bar.

6. A. device of the character described comprising a supporting member,a cutting blade movably `mounted thereon, electromagnetic means formoving said blade in one direction, and spring means for moving saidblade in the opposite direction, said spring means having a weakenedportion.

7. ik device of the character described i comprising -a supportingmember, a cutting blade movably mounted thereon, and means for vibratingsaid cutting Vblade comprising a. driving link and electromagnetic meansfor moving said link and blade in one direction energized from a sourceof alternating current and spring means extending parallel to said linkfor moving said blade in the opposite direction, said spring meanshaving a weakened ortion t'o tune the moving parts ot saidI device tothe frequency of said source of current.

8. A device ofthe character described comprising a supporting member, acutting blade movably mounted the eon, and driving means for said bladecomprisinov electromagnetic means` tor moving said blade in onedirection, and spring means for moving said blade in the. oppositedirection. said spring means having a weakened portion between the endsthereof.

9. A device of the character described comprisingr a support, areciprocable blade mounted on said support, and means for reciprocatingsaid blade comprising an electromagnet, and an armature adapted to bevibrated thereby, said magnet and said armature being relativelyadjustable.

10. A- device of the character described comprising a casing having acover member, a blade fixed relative to said casing, a blade mounted toreciprocate transversely ot said first mentioned blade, means forreciprocating said blade. adjustable tension means within the casing forpressing said blades into engagement and adjusting means eX- tendingoutside said casing, said tension means being held within saidl casingindependently of said cover.

11. A device of the character described comprising a support, a bladefixed relative to said support, a blade mounted to move transverselyotsa-id lirst mentioned blade, tension means within said' casing forholding said movable blade in engagement with said fixed blade, avibrating armature, an electromagnet for actuating said armature and adriving connect-ion between said arma-ture and said movable blade, saiddriving connection being independent of said tension means.

12. A device ofthe character described comprising a casing, a movableblade mounted on said casing, and means for moving said blade comprisingan electromagnet and an armature cooperating therewith, said casingbeing provided with means to hold said elec-tromagnet from rattlingtherein.

13. A device of the character described comprising a casing, a toothedblade fixed relative thereto, al movable blade cooperatingftherewith,and means for moving said blade, said movable blade having means withinsaid casing independent of said other blade for guiding the movementsthereof so that theiorward edge thereof will movel substantiallyparallel to the forward edge of the fixed blade.

14. A device of the character described comprising a stationary toothedblade, a toothed blade mounted to reciprocate. relal tive to saidstationary blade, and means ,for reciprocati-njgv said blade comprisingan elec.- tromagnet and an arn'lature adapted to be vibratedv thereby,said. electronuignet. and armature being relatively adjustable withoutchanging the relative position of the teeth on said blades.

l5. A device of the character described comprising a support, areciprocable blade mounted on said support, means for reciprocating saidblade comprising an electromagnet, and an armature adapted to bevibrated thereby, and means for adjusting said armature relative to saidmagnet.

16. A device ot the character described comprising a casing, a blademounted to reciprocate relative to said casing, means within. saidcasing for reciprocating said blade comprising an clectromagnet, and anarmature adapted to be vibra-ted thereby, and means extending outside otthe said casing for adjusting said armature relative "o said magnet. x

v 17. In a clipper the combination of an electro-lmignetie coil, anarmature tor the c oil, and a spring for mounting tbe armature to permitit to move to a point short of contact with the pole piece of the coilthereby providing a movement limit.

18. In a clipper the combination of an electro-magnetic coil, anarmature t'or the coil, a spring for carrying the armature andpermitting it to move to a point short of contact with the pole \pieceot the coil, and means for adjusting the spring.

19. In a clipper the combination of an alternating currentelectro-magnetic coil, an armature for the, coil, and a spring forcarrying thevarmature and permitting it to move to a point shorty ofcontact with the pole piece of the coil and for moving it to a pointaway from the pole piece of the coil during the intervals between theperiods of attraction.

20. In a clipper the combination of an alternating currentelectro-magnetic,coil, an armature for the coil, and a spring forcarrying the ,armature and permitting it to move to a point short, otcontact with the pole piece of the coil and for moving it to a pointaway from the pole piece of the coil during the intervals between theperiods of attraction and means for adjusting the spring.

21. In a clipper a combination of a handle carrying a stationaryserrated clipper blade, a movable serrated clipper blade cooperatingtherewith, an electro-magnetic coil mounted in the handle, an armature`for the coil and for moving the movable clipper blade, and a spring formounting the armature and affording movement limits tor its travelapproxmately equalto the spacing of thev serrations of the blades.

22. .In a clipper the combination of a case, a stationary blade carriedthereby, a movable blade cooperating with the stationary blade, anarmature for operating the movable blade, an electro-magnetic device formoving the armature, a mounting for the a1'- mature, and means forapplying pressure to the armature to hold the blades in operativerelation, said means acting adjacent the mounting for the armature.

23. In a clipper the combination of a case, a stationary 'blade carriedthereby, a movable blade cooperating with the stationary blade, anelectro-magnet in the case, blade moving means comprising in part anarmature and for moving the movable blade, and means for applyingpressure to the blade moving means said vpressure vmeans acting at apoint approximating the point of minimum movement of the bladevoperating means.

24. In a clipper the combination of a case,

`a stationary blade carried thereby, a movable blade cooperating withthe stationary blade, an electro-magnet in the case, an armovableclipper blade, a yielding connection "between the armature and themovable clipper blade, said connection being yielding in a directionother than the direction of movement of the blade, and means forapplying pressure to the movable blade to hold it .in operative relationto the stationary blade, said means operating at a point having lessmovement than the movement of the movable blade.

25. lin a clipper the combination of a case, a stationary blade carriedthereby, a movable blade cooperating with the stationary blade, anelectro-magnet in the case, an armature cooperating with theelectro-magnet and for moving the movable blade, means for applyingyielding pressure to the movable blade to hold it in operative relationto the stationary blade, a portion of said means moving With the movableblade, an abutment for -t-he pressure means, the movable blade havinggreater movement than the movement between the pressure means and itsabutment.

Liao. J. WAHL. i

DISQI-AIIVIER.

1,487,189-1160 .'J. Wahl, Sterling, `Ill. f CImER. Patent dated` March18, 192.4. Disclaimer filed August 29, 1927, by the patentee. l Herebyenters this disclaimer to claims 4, 9, 10, 11,.-15, 16, 17, 18, 19, 20,21, and 22 `of., the specification as issued in said Letters Patent No.1,487 ,189, and which are in the following words, to wit:

4. In a clipper, the combination ot a case, a clipper blade carriedthereby, a movable blade co-operating with the first mentioned blade, anelectro-magnet carried by thecase, a circuit for the magnet, a springcarried armature bar, a driving con-y nectionpbetween the armaturebarand the movable clipper. blade, and means for adjusting the tensionof thespring which carried the armature bar.

9. A device of the character described comprising a support, areciprocable f blade mounted on s-aid support, and means forreciprocating said lblade comprising an electromagnet, and an armatureadapted to be vibrated thereby, said magnet and said armature beingrelatively adjustable.

` 10. A device of the character described comprising a casing having acover member, a blade fixed relative to said casing, a blade mounted toreciprocate transversely of said mentioned blade, means forreciprocating said blade, adjustable tension means within the casing forpressing said blades into engagementand adjusting means extendingoutside said casing, said tension means being held within said casingindependently of said cover.

11. A device of the character described comprising a. support, a bladefixed relative to said support, a blade mounted. to move transversely ofsaid irst mentioned j blade, tension means within said casing forholding said movable blade in engagement with said fixed blade, avibratingarmature, an electromagnet for actuating said armature' and adriving connection between said armature and said movable blade, saiddriving connection being` independent of said tension means.

15. A device of the character described comprising a' support, areciprocable i blade mounted on said support, means for reciprocatingsaid blade comprising an electromagnet, andan armature adapted to bevibrated thereby, and means for adjusting said armature relative to saidmagnet. l 3.

16. A device of the lcharacter described comprising a casing ,a' blademounted to reciprocate relative to said casing, means within said casingfor reciprocating said A blade comprising an electromagnet-and anarmature adapted to be vibrated thereby,

and means extending outside of the said casing for adjusting saidarmature relative to said magnet.

17. Inv a clipper the combination of an electro-magnetic coil, anvarmature for lthe coil, and a spring for mounting the armature topermit it to move to a pcint short of contact with the pole piece of thecoil thereby providing a movement limit.

,18. In a clipper the combination of anfelectro-magnetic coil, an'armature for the coil, a spring for carrying the armature and permittingit to move to a polnt short of contact with the pole piece of the coiland means for adjusting the spring. A

19. In a clipper the combination of an alternating currentelectro-magnetic c0101, an armature for the` coil,and a spring forcarrying the armature and permitting it` to move to a point short ofcontact with the pole piece of the coil and for moving it to a pointaway from the pole piece of the coil during the intervals between the Iperiods of attraction.

20. In a clipper the combination of an alternating currentelectro-magnetic coil, an armature for the coil, and a spring forcarrying the armature and permitting 1t to move to a point short ofcontact with the pole piece of the coil and for moving it to a pointaway from the pole `piece of the coil duringthe intervals between theperiods of attraction, 'and means for adjusting the spring.

21. In a clipper a combination of a handle carrying a stationaryserrated clipper blade, a movable serrated clipper blade cooperatingtherewith, an electro-magnetlcl coil mounted in the handle, an armaturefor the coil and for moving the movable clipper blade, and a spring formounting the armature and aiordmg movement ll)ilmits for its travelapproximately equal to the"spacing ofthe serrations of the ades. 9-

22. Ina clipper the combination ofa case, a stationary bladecarried-thereby,

a'movable blade cooperatingwith the stationary blade, an armature foroperating the movable blade, an electro-magnetic device for moving thearmature, a mounting for the armature, and means .for applying pressureto the'armature to hold the blades inoperative relation, said meansacting adjacent the mounting for the armature. n l

[Oficial Gazette September 13,'19271]

